icinga2/lib/icinga/notification.cpp

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/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
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#include "icinga/notification.h"
#include "icinga/macroprocessor.h"
#include "icinga/service.h"
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#include "base/dynamictype.h"
#include "base/objectlock.h"
#include "base/logger_fwd.h"
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#include <boost/tuple/tuple.hpp>
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#include <boost/foreach.hpp>
#include <boost/exception/diagnostic_information.hpp>
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using namespace icinga;
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REGISTER_TYPE(Notification);
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Notification::Notification(const Dictionary::Ptr& serializedUpdate)
: DynamicObject(serializedUpdate)
{
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RegisterAttribute("notification_command", Attribute_Config, &m_NotificationCommand);
RegisterAttribute("macros", Attribute_Config, &m_Macros);
RegisterAttribute("users", Attribute_Config, &m_Users);
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RegisterAttribute("groups", Attribute_Config, &m_Groups);
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RegisterAttribute("host_name", Attribute_Config, &m_HostName);
RegisterAttribute("service", Attribute_Config, &m_Service);
}
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Notification::~Notification(void)
{
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Service::InvalidateNotificationsCache();
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}
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/**
* @threadsafety Always.
*/
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Notification::Ptr Notification::GetByName(const String& name)
{
DynamicObject::Ptr configObject = DynamicObject::GetObject("Notification", name);
return dynamic_pointer_cast<Notification>(configObject);
}
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/**
* @threadsafety Always.
*/
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Service::Ptr Notification::GetService(void) const
{
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Host::Ptr host = Host::GetByName(m_HostName);
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if (!host)
return Service::Ptr();
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if (m_Service.IsEmpty())
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return host->GetHostCheckService();
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else
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return host->GetServiceByShortName(m_Service);
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}
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/**
* @threadsafety Always.
*/
Value Notification::GetNotificationCommand(void) const
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{
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return m_NotificationCommand;
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}
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/**
* @threadsafety Always.
*/
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Dictionary::Ptr Notification::GetMacros(void) const
{
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return m_Macros;
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}
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/**
* @threadsafety Always.
*/
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std::set<User::Ptr> Notification::GetUsers(void) const
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{
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std::set<User::Ptr> result;
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Array::Ptr users = m_Users;
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if (users) {
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ObjectLock olock(users);
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BOOST_FOREACH(const String& name, users) {
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User::Ptr user = User::GetByName(name);
if (!user)
continue;
result.insert(user);
}
}
return result;
}
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/**
* @threadsafety Always.
*/
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std::set<UserGroup::Ptr> Notification::GetGroups(void) const
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{
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std::set<UserGroup::Ptr> result;
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Array::Ptr groups = m_Groups;
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if (groups) {
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ObjectLock olock(groups);
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BOOST_FOREACH(const String& name, groups) {
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UserGroup::Ptr ug = UserGroup::GetByName(name);
if (!ug)
continue;
result.insert(ug);
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}
}
return result;
}
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/**
* @threadsafety Always.
*/
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String Notification::NotificationTypeToString(NotificationType type)
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{
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switch (type) {
case NotificationDowntimeStart:
return "DOWNTIMESTART";
case NotificationDowntimeEnd:
return "DOWNTIMEEND";
case NotificationDowntimeRemoved:
return "DOWNTIMECANCELLED";
case NotificationCustom:
return "CUSTOM";
case NotificationAcknowledgement:
return "ACKNOWLEDGEMENT";
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case NotificationProblem:
return "PROBLEM";
case NotificationRecovery:
return "RECOVERY";
default:
return "UNKNOWN_NOTIFICATION";
}
}
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/**
* @threadsafety Always.
*/
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void Notification::BeginExecuteNotification(NotificationType type, const Dictionary::Ptr& cr)
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{
ASSERT(!OwnsLock());
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Dictionary::Ptr macros = cr->Get("macros");
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std::set<User::Ptr> allUsers;
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std::set<User::Ptr> users = GetUsers();
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std::copy(users.begin(), users.end(), std::inserter(allUsers, allUsers.begin()));
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BOOST_FOREACH(const UserGroup::Ptr& ug, GetGroups()) {
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std::set<User::Ptr> members = ug->GetMembers();
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std::copy(members.begin(), members.end(), std::inserter(allUsers, allUsers.begin()));
}
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BOOST_FOREACH(const User::Ptr& user, allUsers) {
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Log(LogDebug, "icinga", "Sending notification for user " + user->GetName());
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BeginExecuteNotificationHelper(macros, type, user);
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}
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if (allUsers.empty()) {
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/* Send a notification even if there are no users specified. */
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BeginExecuteNotificationHelper(macros, type, User::Ptr());
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}
}
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/**
* @threadsafety Always.
*/
void Notification::BeginExecuteNotificationHelper(const Dictionary::Ptr& notificationMacros, NotificationType type, const User::Ptr& user)
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{
ASSERT(!OwnsLock());
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std::vector<Dictionary::Ptr> macroDicts;
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if (user) {
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macroDicts.push_back(user->GetMacros());
macroDicts.push_back(user->CalculateDynamicMacros());
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}
macroDicts.push_back(notificationMacros);
Dictionary::Ptr macros = MacroProcessor::MergeMacroDicts(macroDicts);
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Notification::Ptr self = GetSelf();
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std::vector<Value> arguments;
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arguments.push_back(self);
arguments.push_back(macros);
arguments.push_back(type);
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ScriptTask::Ptr task = MakeMethodTask("notify", arguments);
if (!task) {
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Log(LogWarning, "icinga", "Notification object '" + GetName() + "' doesn't have a 'notify' method.");
return;
}
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{
ObjectLock olock(this);
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/* We need to keep the task object alive until the completion handler is called. */
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m_Tasks.insert(task);
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}
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task->Start(boost::bind(&Notification::NotificationCompletedHandler, self, _1));
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}
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/**
* @threadsafety Always.
*/
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void Notification::NotificationCompletedHandler(const ScriptTask::Ptr& task)
{
ASSERT(!OwnsLock());
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{
ObjectLock olock(this);
m_Tasks.erase(task);
}
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try {
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task->GetResult();
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Log(LogInformation, "icinga", "Completed sending notification for service '" + GetService()->GetName() + "'");
} catch (const std::exception& ex) {
std::ostringstream msgbuf;
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msgbuf << "Exception occured during notification for service '"
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<< GetService()->GetName() << "': " << boost::diagnostic_information(ex);
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String message = msgbuf.str();
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Log(LogWarning, "icinga", message);
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}
}
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/**
* @threadsafety Always.
*/
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void Notification::OnAttributeChanged(const String& name)
{
ASSERT(!OwnsLock());
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if (name == "host_name" || name == "service")
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Service::InvalidateNotificationsCache();
}